PITTSBURGH (AP) ' A person with knowledge of the decision says Pittsburgh has hired Wisconsin offensive coordinator Paul Chryst as its head football coach.

The person spoke on condition of anonymity because an official announcement has not yet been made.

Chryst replaces Todd Graham, who left the Panthers last week after one season to coach Arizona State.

The 46-year-old Chryst helped mold the Badgers into an offensive powerhouse since joining the program in 2005. Wisconsin (11-2) is ranked fourth in the country in scoring this season, averaging 44.6 points while winning the Big Ten championship and earning a Rose Bowl berth.

The Panthers went 6-6 in Graham's one season and are in desperate need of stability. Chryst is the school's fourth head coach in 13 months.